Recent Log Entries

Fopt - after M56 correction up to 3R

Log Number: 3589520Logbook(s): Tags: Body: Fopt 7.2 completed successfully. The runtime settings include a sample count of 15, a minimum current of 4, and an operating regime of Standard with Excitation in 1S Region. The corrector and RF kicks applied were 1.48587 and 1.48587 volts respectively. The max. amplitude setting was 1 millimeters. The files for this run were saved in the directory /cs/opshome/hlapps/optics/diforb/18aug201848. The X and Y stability of the machine during the run was 0.147401 and 0.0717393 (mm) respectively.

Fopt aborted

Log Number: 3589519Logbook(s): Tags: Body: Fopt 7.2 was aborted by operator request.GUI's Log PageFopt Progress Log
18:47:09 Starting Fopt
18:47:09 Fetching current and energies
18:47:09 Extracting BPM information from CED
18:47:10 Number of BPMs detected: 284
18:47:10 Determining status of Halls
18:47:10 Suspending Energy Locks
18:47:10 Suspending Orbit Locks
18:47:10 Set SEE pass select to auto
18:47:10 Programming the function generator
18:47:11 Turning off Fast Feedback to A & C

M56 Corrected for Arc2, then Arc1

Log Number: 3589518Logbook(s): Entry Makers: moserBody: 

M56 measured for all arcs up to Arc6.

Figure 1: Beam setup to the 3R dumplette. Figure 2: Energy lock setup.

Figure 3: archive plot, after placing in 0.001 dp/p offset into 2A energy lock and turning off (new edit to procedure) 1A energy lock, finding we have 0.34 mm negative change on M56N:PEAK2, greater than threshold of 0.2mm, so we will have to correct.

Figures 4 and 5: Loaded in Arc2 M56 knob file. Verified correct quads used and no others. Note for the procedure -- it appears generic knobs did not take these two quads off loop, so I did so by hand.

Autolog save

Log Number: 3589514Logbook(s): Tags: Body: saver ran from opsl01

Saved: moser 08-20-18 18:21:04 {A:5 B:5 C:4 E:1050 A=Tune B=BS C=BS D=BS 0R08=4.17 7R dump in. A B C dump(s) in.

Phaser-ing SL Cavities In Need

Log Number: 3589510Logbook(s): Entry Makers: moserBody: 

Figures 1 and 2, setup. Figures 3 and 4: Results. Applied the two cavities <30degrees off. Checking 2L17-2 by hand.

2L11-3 CWWT Heating

Log Number: 3589504Logbook(s): Entry Makers: kernsBody: 

Warm window heating , IR goes from 9.9v to less than 5 in less than an hour of RF. We looked at it downstairs and and flange was loose at the cavity end. This is the third time with RF that the window had RF at 10.3Mv/m and faulted out both cavities 3 and 4 with CWVF before cavity three faulted on CWWT. SRF was informed a while back and I will inform them again about the problem. The IR voltage is now at 5.9v and faulted. Informed crew chief to GSET this cavity to 0 and go on with lem.

LEM North Linac

Log Number: 3589502Logbook(s): Tags: Body: LEM 9.6 was successfully run for the North Linac on Mon Aug 20 17:51:47 2018. The application phase took 0:00:13 to complete.


Log Number: 3589501Logbook(s): Tags: Body: 

FudgeIt 4.0 changed the North Linac fudge factor from 0.973 to 0.97.

LEM South Linac

Log Number: 3589498Logbook(s): Tags: Body: LEM 9.6 was successfully run for the South Linac on Mon Aug 20 17:46:38 2018. The application phase took 0:00:15 to complete.